Process of making prepared roofing and apparatus used in connection therewith



0. A. HEPPES AND C. E. RAHR.

PROCESS OF MAKING PREPARED ROOFING AND APPARATUS USED IN CONNECTIONTHEREWITH. APPLICATION FILED DEC.5, I918.

1,392,49 Patented Oct. 4, 1921.

. shown.

UNITED STATES PATENT OFFICE.

OTTO A. HEPPES, OF CHICAGO, ILIJNOIS, AND CHESTER E. RAHR, OF BROOKLINE,MASSACHUSETTS.

PROCESS OF MAKING- PREPARED ROOFING AND APPARATUS USED IN CONNECTIONTHEREWITH.

Specification of Letters Patent.

Patented Oct. 4, 1921.

Application filed December 5, 1918. Serial No. 265,346.

To all whom it may concern:

Be it known that we, Or'ro A. Hnrrns and CHESTER 'E. RAHR, both citizensof the United States, residing, respectively, in the city of Chicago,county of Cook, and State of Illinois, and the city of Brookline, countyof Suffolk, and State of Massachusetts, have invented certain new anduseful Improvements in Processes of Making Prepared Roofing andApparatus Used in Connection Therewith, of which the following is aspecification.

This invention relates to improvements in a process of making preparedroofing and apparatus used in connection therewith and refers moreparticularly to aprocess and apparatus for economically saturating,coating and cooling prepared roofing.

The object of the invention is to provide a process and apparatus inwhich material asses over the saturating tank to the coating tank andthence to the cooling rolls in such a manner as to take advantage ofgravity action and thereby lessen tendency to tear the roofing.

In the drawing, is shown a somewhat diagrammatic view of the novel formof apparatus used to carry out the invention.

Referring to the drawing, a, b, a, and d designate the various floors ofa roofing plant or various heating zones of successively decreasingtemperature, the hottest zone being at the top. It is not necessary thatthese heating zones be on separate floors but this is merely aconvenient manner of arrangement. In the room' or zone' a, is mountedthe saturating tank 1, provided with usual rolls 2 over which is fedthe' roofing length or fabric 3 from the drum 4.

After the roofing length 3 leaves the saturating tank 1, it passes overrolls 5 and 6 and thence down through a suitable opening 7 in thechamber a to the roll 8 in the chamber 6. The roofing length then passesbetween the spreader or pressure rolls 9 mounted above a tank 10. Theroofing length is here coated by the coating material which can bepassed through the spout or nozzle 11 connected to a suitable source ofsupply not After being coated, the roofing passes beneath the ho per 12containing the granular facing of the desired character and thencethrough the rolls 13. The ex-- cess roofing drops into the box 14 andthe granular coated roofing now passes between granular facing may beomitted if desired or may be at a different place in the travel of theroofing length. Similarly the step of putting on the tale to the underfacing of the roofin to prevent sticking maybe omitted. By t earrangement just described, the roofing can be much more quickly cooledand fed forward much more economically than in present practice. A

The invention is not limited to the details of construction or operationshown excepgz as set forth in the appended claims.

e claim as our invention:

1. A process of making prepared roofing consisting in passing theroofing fabric through a saturating tank seated in a heated zone, thencepassing the saturated roofing fabric downwardly into a zone of lesserheat than the first and there coating the same, thence passing theroofing still farther downwardly into a still cooler zone and causing itto pass therethrough a suflicient length of time to cool it and finallycollecting the cooled saturated and coated roofing.

2. In an apparatus of the character described, the combination. with asaturating tank, located in a suitable chamber, means for feeding theroofing length through said tank, means for coating the.saturatedroofing length located in a chambersituated below the firstchamber, means for cooling the saturated and coated roofing, comprisinga plurality of rolls located in a chamber below the second chamber andmeans for collecting the completed roofing.

'3'. A process of making a prepared roofing ing tank,thence passing itdownwardly to coating mechanism where it is coated and thence passingthe roofing downwardly and substantially vertically over cooling rollsand finally winding it up.

4. A process of making prepared roofing consisting in passing it througha saturatingtank located in a compartment constituting the hottest zone,thence passing it to a second compartment to lesser heat where it iscoated, thence passing it to a third =:om- 10 partment of still coolertemperature where it is cooled thence to a final compartment where theproduct is collected.

OTTO A. HEPPES. CHESTER E. RAHR.

